1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
// gomuks - A terminal Matrix client written in Go.
// Copyright (C) 2018 Tulir Asokan
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package tstring
import (
"strings"
"github.com/mattn/go-runewidth"
"maunium.net/go/tcell"
)
type TString []Cell
func NewBlankTString() TString {
return make([]Cell, 0)
}
func NewTString(str string) TString {
newStr := make([]Cell, len(str))
for i, char := range str {
newStr[i] = NewCell(char)
}
return newStr
}
func NewColorTString(str string, color tcell.Color) TString {
newStr := make([]Cell, len(str))
for i, char := range str {
newStr[i] = NewColorCell(char, color)
}
return newStr
}
func NewStyleTString(str string, style tcell.Style) TString {
newStr := make([]Cell, len(str))
for i, char := range str {
newStr[i] = NewStyleCell(char, style)
}
return newStr
}
func (str TString) AppendTString(data TString) TString {
return append(str, data...)
}
func (str TString) Append(data string) TString {
newStr := make(TString, len(str)+len(data))
copy(newStr, str)
for i, char := range data {
newStr[i+len(str)] = NewCell(char)
}
return newStr
}
func (str TString) AppendColor(data string, color tcell.Color) TString {
return str.AppendCustom(data, func(r rune) Cell {
return NewColorCell(r, color)
})
}
func (str TString) AppendStyle(data string, style tcell.Style) TString {
return str.AppendCustom(data, func(r rune) Cell {
return NewStyleCell(r, style)
})
}
func (str TString) AppendCustom(data string, cellCreator func(rune) Cell) TString {
newStr := make(TString, len(str)+len(data))
copy(newStr, str)
for i, char := range data {
newStr[i+len(str)] = cellCreator(char)
}
return newStr
}
func (str TString) Colorize(from, length int, color tcell.Color) {
for i := from; i < from+length; i++ {
str[i].Style = str[i].Style.Foreground(color)
}
}
func (str TString) Draw(screen tcell.Screen, x, y int) {
offsetX := 0
for _, cell := range str {
offsetX += cell.Draw(screen, x+offsetX, y)
}
}
func (str TString) RuneWidth() (width int) {
for _, cell := range str {
width += runewidth.RuneWidth(cell.Char)
}
return width
}
func (str TString) String() string {
var buf strings.Builder
for _, cell := range str {
buf.WriteRune(cell.Char)
}
return buf.String()
}
// Truncate return string truncated with w cells
func (str TString) Truncate(w int) TString {
if str.RuneWidth() <= w {
return str[:]
}
width := 0
i := 0
for ; i < len(str); i++ {
cw := runewidth.RuneWidth(str[i].Char)
if width+cw > w {
break
}
width += cw
}
return str[0:i]
}
func (str TString) IndexFrom(r rune, from int) int {
for i := from; i < len(str); i++ {
if str[i].Char == r {
return i
}
}
return -1
}
func (str TString) Index(r rune) int {
return str.IndexFrom(r, 0)
}
func (str TString) Count(r rune) (counter int) {
index := 0
for {
index = str.IndexFrom(r, index)
if index < 0 {
break
}
index++
counter++
}
return
}
func (str TString) Split(sep rune) []TString {
a := make([]TString, str.Count(sep)+1)
i := 0
orig := str
for {
m := orig.Index(sep)
if m < 0 {
break
}
a[i] = orig[:m]
orig = orig[m+1:]
i++
}
a[i] = orig
return a[:i+1]
}
|
